struct library *deleteBook(struct library* head, char choiceBook[50]){
    struct library *next,*start,*end,*temp,*bfrEnd,*t;
    start = head;
    next = head -> next;
    temp = head;
    end = head;
    bfrEnd = head;
    for (temp = head; temp -> next != NULL; temp = temp->next){
        for(bfrEnd = head; bfrEnd -> next != end; bfrEnd = next -> next ){
            for (end = head; end -> next != NULL; end = end->next){
            }

        }
        //start
        if(strcmp(start -> collection.title, choiceBook) == 0){
            copybook(&(start->collection), &(end -> collection));
            next = head;
            bfrEnd -> next = NULL;
            free(end);

        }
        //between
        if(strcmp(temp -> collection.title, choiceBook) == 0){
            copybook(&(temp->collection), &(end -> collection));
            bfrEnd -> next = NULL;
            free(end);
        }



    }

    if(strcmp(end -> collection.title, choiceBook) == 0){
        bfrEnd -> next = NULL;
        free(end);
    }
}